/* base.css */

/* 与参考代码类似的全局 reset */
* {
    margin: 0;
    padding: 0;
  }
  
  ul, ol, li {
    list-style: none;
  }
  
  a, a:hover, a:link, a:active {
    text-decoration: none;
    color: #333;
  }
  
  img {
    width: 100%;
    height: 100%;
    display: block;
  }
  
  .container {
    width: 1200px;
    margin: 0 auto;
  }
  
  .header {
    height: 60px;
    background-color: skyblue;
    color: #fff;
    font-size: 30px;
    font-weight: 700;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
  }
  
  .header > p {
    position: absolute;
    font-size: 18px;
    right: 20px;
    font-weight: 500;
    display: none;
  }
  .header>p.active {
    display: block;
  }
  .header>p>button {
    cursor: pointer;
    padding: 3px 10px;
  }
  .header>p>a {
    color: red;
  }
  
  .footer {
    height: 300px;
    background-color: skyblue;
    display: flex;
    font-size: 100px;
    color: #fff;
    justify-content: center;
    align-items: center;
  }
  